740556129 has 8 divisors (see below), whose sum is σ = 999304992. Its totient is φ = 487755680.

The previous prime is 740556119. The next prime is 740556143. The reversal of 740556129 is 921655047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 740556129 - 2⁹ = 740555617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (740556109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486812 + ... + 1487309.

It is an arithmetic number, because the mean of its divisors is an integer number (124913124).

Almost surely, 2^740556129 is an apocalyptic number.

It is an amenable number.

740556129 is a deficient number, since it is larger than the sum of its proper divisors (258748863).

740556129 is a wasteful number, since it uses less digits than its factorization.

740556129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2974207.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 740556129 is about 27213.1609520100. The cubic root of 740556129 is about 904.7306989487.

The spelling of 740556129 in words is "seven hundred forty million, five hundred fifty-six thousand, one hundred twenty-nine".